Empowering Computer and Statistics
Here at Armancomputer -an online magazine (Blog) we concentrate on computing software and applications. One of the most popular software applications in data analysis is Microsoft Excel, and its new functions are more challenging. In this post, we want to introduce a new logical function called Excel switch function. If you have many levels as […]
In the previous article entitled Statistical Distribution and Its Density Plot Shiny Application – Part 1, we learned how to draw the graph of the density function of a distribution by generating random numbers from that distribution. In this article, we will solve the disadvantages and problems that existed in the previous program and provide […]
Random numbers in computer data simulation and statistical distributions play an important role. Although we know that the numbers generated by computer algorithms are pseudo-random (No real Random), but in most cases we use these techniques to create random numbers in the range [a,b] (from a to b). In this article of Arman Computer magazine, we […]
In this article, with the help of examples, the use of the switch function in R language reviewed in armancomputer scientific magazine which has an important role to program multiple conditions. As you know, R is a computational programming specially design for statistics. The switch function in R evaluates an expression against the elements of […]
As in the calculation formula Average said, the role of each observation and value in calculating the average is equal and the same. If it is necessary that some observations have more or less importance in calculating the mean, weight (importance level) can be considered for them. In this article from Arman Computer Magazine, we […]
In statistics, classification is a technique that assigns an observation (or observations) to a set of categories (subpopulations). For example, you can assign a specific email to the class “spam” or “non-spam”. Obviously, this diagnosis is based on previously observed features (examples). In this text, we want to deal with classification with a statistical approach. […]
With the advent of computing devices (mechanical or electronic), the speed of performing mathematical and logical operations increased so that today many of our daily activities depend on the existence of such devices. Along with these devices (hardware), computing softwares are also used and are considered an inseparable part of the current affairs of users […]
